A COMPARATIVE STUDY OF DENTINAL TUBULES IN ATTRITED AND NORMAL TEETH USING LIGHT MICROSCOPE AND POLARIZED LIGHT MICROSCOPE

Abstract

The aim of the study is to evaluate the dentinal changes in attrited and normal tooth & to correlate the relationship between attrition and age changes in dentin . In this study 30 extracted teeth were used. The teeth were categorised into two groups (attrited and normal teeth) and comparison was made between light microscope and polarised light microscopic findings. All the thirty freshly extracted teeth were fixed 10% formalin for 24-48 hours. The dentinal changes secondary to attrition such as dead tracts and dentinal sclerosis formation were studied under light microscopy and correlated with that of polarised light microscope..Samples analysed in polarised light microscope showed that dead tracts and dentinal sclerosis was highly significant (p<0.001) . The polarised light microscope is a powerful magnification tool which offers extremely high resolution.